ec8700c418
No need to create allocation site for literals in oneshot code since they are executed only once. The interpreter emits a runtime call to CreateObjectLiteralWithoutAllocationSite for creating literals in oneshot code instead. Change-Id: I224b3a30f10361cfe9ff63129b36da8230c5e403 Reviewed-on: https://chromium-review.googlesource.com/1163615 Commit-Queue: Chandan Reddy <chandanreddy@google.com> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#55050}
591 lines
20 KiB
C++
591 lines
20 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <cstring>
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#include <fstream>
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#include <memory>
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#include <vector>
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#include "test/cctest/interpreter/bytecode-expectations-printer.h"
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#include "include/libplatform/libplatform.h"
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#include "include/v8.h"
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#include "src/base/logging.h"
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#include "src/interpreter/interpreter.h"
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#ifdef V8_OS_POSIX
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#include <dirent.h>
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#endif
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using v8::internal::interpreter::BytecodeExpectationsPrinter;
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#define REPORT_ERROR(MESSAGE) (((std::cerr << "ERROR: ") << MESSAGE) << '\n')
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namespace {
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#ifdef V8_OS_POSIX
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const char* kGoldenFilesPath = "test/cctest/interpreter/bytecode_expectations/";
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#endif
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class ProgramOptions final {
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public:
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static ProgramOptions FromCommandLine(int argc, char** argv);
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ProgramOptions()
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: parsing_failed_(false),
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print_help_(false),
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read_raw_js_snippet_(false),
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read_from_stdin_(false),
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rebaseline_(false),
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wrap_(true),
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module_(false),
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top_level_(false),
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print_callee_(false),
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oneshot_opt_(false),
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do_expressions_(false),
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async_iteration_(false),
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public_fields_(false),
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private_fields_(false),
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static_fields_(false),
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verbose_(false) {}
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bool Validate() const;
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void UpdateFromHeader(std::istream& stream); // NOLINT
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void PrintHeader(std::ostream& stream) const; // NOLINT
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bool parsing_failed() const { return parsing_failed_; }
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bool print_help() const { return print_help_; }
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bool read_raw_js_snippet() const { return read_raw_js_snippet_; }
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bool read_from_stdin() const { return read_from_stdin_; }
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bool write_to_stdout() const {
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return output_filename_.empty() && !rebaseline_;
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}
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bool rebaseline() const { return rebaseline_; }
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bool wrap() const { return wrap_; }
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bool module() const { return module_; }
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bool top_level() const { return top_level_; }
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bool print_callee() const { return print_callee_; }
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bool oneshot_opt() const { return oneshot_opt_; }
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bool do_expressions() const { return do_expressions_; }
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bool async_iteration() const { return async_iteration_; }
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bool public_fields() const { return public_fields_; }
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bool private_fields() const { return private_fields_; }
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bool static_fields() const { return static_fields_; }
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bool verbose() const { return verbose_; }
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bool suppress_runtime_errors() const { return rebaseline_ && !verbose_; }
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std::vector<std::string> input_filenames() const { return input_filenames_; }
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std::string output_filename() const { return output_filename_; }
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std::string test_function_name() const { return test_function_name_; }
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private:
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bool parsing_failed_;
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bool print_help_;
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bool read_raw_js_snippet_;
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bool read_from_stdin_;
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bool rebaseline_;
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bool wrap_;
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bool module_;
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bool top_level_;
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bool print_callee_;
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bool oneshot_opt_;
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bool do_expressions_;
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bool async_iteration_;
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bool public_fields_;
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bool private_fields_;
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bool static_fields_;
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bool verbose_;
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std::vector<std::string> input_filenames_;
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std::string output_filename_;
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std::string test_function_name_;
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};
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class V8InitializationScope final {
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public:
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explicit V8InitializationScope(const char* exec_path);
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~V8InitializationScope();
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v8::Platform* platform() const { return platform_.get(); }
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v8::Isolate* isolate() const { return isolate_; }
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private:
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std::unique_ptr<v8::Platform> platform_;
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std::unique_ptr<v8::ArrayBuffer::Allocator> allocator_;
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v8::Isolate* isolate_;
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DISALLOW_COPY_AND_ASSIGN(V8InitializationScope);
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};
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bool ParseBoolean(const char* string) {
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if (strcmp(string, "yes") == 0) {
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return true;
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} else if (strcmp(string, "no") == 0) {
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return false;
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} else {
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UNREACHABLE();
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}
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}
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const char* BooleanToString(bool value) { return value ? "yes" : "no"; }
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#ifdef V8_OS_POSIX
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bool StrEndsWith(const char* string, const char* suffix) {
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int string_size = i::StrLength(string);
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int suffix_size = i::StrLength(suffix);
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if (string_size < suffix_size) return false;
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return strcmp(string + (string_size - suffix_size), suffix) == 0;
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}
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bool CollectGoldenFiles(std::vector<std::string>* golden_file_list,
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const char* directory_path) {
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DIR* directory = opendir(directory_path);
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if (!directory) return false;
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dirent* entry = readdir(directory);
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while (entry) {
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if (StrEndsWith(entry->d_name, ".golden")) {
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std::string golden_filename(kGoldenFilesPath);
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golden_filename += entry->d_name;
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golden_file_list->push_back(golden_filename);
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}
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entry = readdir(directory);
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}
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closedir(directory);
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return true;
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}
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#endif // V8_OS_POSIX
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// static
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ProgramOptions ProgramOptions::FromCommandLine(int argc, char** argv) {
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ProgramOptions options;
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for (int i = 1; i < argc; ++i) {
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if (strcmp(argv[i], "--help") == 0) {
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options.print_help_ = true;
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} else if (strcmp(argv[i], "--raw-js") == 0) {
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options.read_raw_js_snippet_ = true;
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} else if (strcmp(argv[i], "--stdin") == 0) {
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options.read_from_stdin_ = true;
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} else if (strcmp(argv[i], "--rebaseline") == 0) {
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options.rebaseline_ = true;
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} else if (strcmp(argv[i], "--no-wrap") == 0) {
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options.wrap_ = false;
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} else if (strcmp(argv[i], "--module") == 0) {
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options.module_ = true;
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} else if (strcmp(argv[i], "--top-level") == 0) {
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options.top_level_ = true;
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} else if (strcmp(argv[i], "--print-callee") == 0) {
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options.print_callee_ = true;
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} else if (strcmp(argv[i], "--disable-oneshot-opt") == 0) {
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options.oneshot_opt_ = false;
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} else if (strcmp(argv[i], "--do-expressions") == 0) {
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options.do_expressions_ = true;
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} else if (strcmp(argv[i], "--async-iteration") == 0) {
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options.async_iteration_ = true;
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} else if (strcmp(argv[i], "--public-fields") == 0) {
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options.public_fields_ = true;
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} else if (strcmp(argv[i], "--private-fields") == 0) {
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options.private_fields_ = true;
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} else if (strcmp(argv[i], "--static-fields") == 0) {
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options.static_fields_ = true;
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} else if (strcmp(argv[i], "--verbose") == 0) {
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options.verbose_ = true;
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} else if (strncmp(argv[i], "--output=", 9) == 0) {
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options.output_filename_ = argv[i] + 9;
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} else if (strncmp(argv[i], "--test-function-name=", 21) == 0) {
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options.test_function_name_ = argv[i] + 21;
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} else if (strncmp(argv[i], "--", 2) != 0) { // It doesn't start with --
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options.input_filenames_.push_back(argv[i]);
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} else {
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REPORT_ERROR("Unknown option " << argv[i]);
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options.parsing_failed_ = true;
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break;
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}
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}
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if (options.rebaseline_ && options.input_filenames_.empty()) {
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#ifdef V8_OS_POSIX
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if (options.verbose_) {
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std::cout << "Looking for golden files in " << kGoldenFilesPath << '\n';
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}
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if (!CollectGoldenFiles(&options.input_filenames_, kGoldenFilesPath)) {
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REPORT_ERROR("Golden files autodiscovery failed.");
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options.parsing_failed_ = true;
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}
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#else
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REPORT_ERROR("Golden files autodiscovery requires a POSIX OS, sorry.");
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options.parsing_failed_ = true;
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#endif
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}
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return options;
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}
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bool ProgramOptions::Validate() const {
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if (parsing_failed_) return false;
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if (print_help_) return true;
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if (!read_from_stdin_ && input_filenames_.empty()) {
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REPORT_ERROR("No input file specified.");
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return false;
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}
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if (read_from_stdin_ && !input_filenames_.empty()) {
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REPORT_ERROR("Reading from stdin, but input files supplied.");
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return false;
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}
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if (rebaseline_ && read_raw_js_snippet_) {
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REPORT_ERROR("Cannot use --rebaseline on a raw JS snippet.");
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return false;
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}
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if (rebaseline_ && !output_filename_.empty()) {
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REPORT_ERROR("Output file cannot be specified together with --rebaseline.");
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return false;
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}
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if (rebaseline_ && read_from_stdin_) {
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REPORT_ERROR("Cannot --rebaseline when input is --stdin.");
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return false;
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}
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if (input_filenames_.size() > 1 && !rebaseline_ && !read_raw_js_snippet()) {
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REPORT_ERROR(
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"Multiple input files, but no --rebaseline or --raw-js specified.");
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return false;
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}
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if (top_level_ && !test_function_name_.empty()) {
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REPORT_ERROR(
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"Test function name specified while processing top level code.");
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return false;
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}
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if (module_ && (!top_level_ || wrap_)) {
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REPORT_ERROR(
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"The flag --module currently requires --top-level and --no-wrap.");
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return false;
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}
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return true;
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}
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void ProgramOptions::UpdateFromHeader(std::istream& stream) {
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std::string line;
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const char* kPrintCallee = "print callee: ";
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const char* kOneshotOpt = "oneshot opt: ";
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// Skip to the beginning of the options header
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while (std::getline(stream, line)) {
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if (line == "---") break;
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}
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while (std::getline(stream, line)) {
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if (line.compare(0, 8, "module: ") == 0) {
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module_ = ParseBoolean(line.c_str() + 8);
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} else if (line.compare(0, 6, "wrap: ") == 0) {
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wrap_ = ParseBoolean(line.c_str() + 6);
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} else if (line.compare(0, 20, "test function name: ") == 0) {
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test_function_name_ = line.c_str() + 20;
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} else if (line.compare(0, 11, "top level: ") == 0) {
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top_level_ = ParseBoolean(line.c_str() + 11);
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} else if (line.compare(0, strlen(kPrintCallee), kPrintCallee) == 0) {
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print_callee_ = ParseBoolean(line.c_str() + strlen(kPrintCallee));
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} else if (line.compare(0, strlen(kOneshotOpt), kOneshotOpt) == 0) {
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oneshot_opt_ = ParseBoolean(line.c_str() + strlen(kOneshotOpt));
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} else if (line.compare(0, 16, "do expressions: ") == 0) {
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do_expressions_ = ParseBoolean(line.c_str() + 16);
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} else if (line.compare(0, 17, "async iteration: ") == 0) {
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async_iteration_ = ParseBoolean(line.c_str() + 17);
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} else if (line.compare(0, 15, "public fields: ") == 0) {
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public_fields_ = ParseBoolean(line.c_str() + 15);
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} else if (line.compare(0, 16, "private fields: ") == 0) {
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private_fields_ = ParseBoolean(line.c_str() + 16);
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} else if (line.compare(0, 15, "static fields: ") == 0) {
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static_fields_ = ParseBoolean(line.c_str() + 15);
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} else if (line == "---") {
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break;
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} else if (line.empty()) {
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continue;
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} else {
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UNREACHABLE();
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return;
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}
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}
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}
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void ProgramOptions::PrintHeader(std::ostream& stream) const { // NOLINT
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stream << "---"
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<< "\nwrap: " << BooleanToString(wrap_);
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if (!test_function_name_.empty()) {
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stream << "\ntest function name: " << test_function_name_;
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}
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if (module_) stream << "\nmodule: yes";
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if (top_level_) stream << "\ntop level: yes";
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if (print_callee_) stream << "\nprint callee: yes";
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if (oneshot_opt_) stream << "\noneshot opt: yes";
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if (do_expressions_) stream << "\ndo expressions: yes";
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if (async_iteration_) stream << "\nasync iteration: yes";
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if (public_fields_) stream << "\npublic fields: yes";
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if (private_fields_) stream << "\nprivate fields: yes";
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if (static_fields_) stream << "\nstatic fields: yes";
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stream << "\n\n";
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}
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V8InitializationScope::V8InitializationScope(const char* exec_path)
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: platform_(v8::platform::NewDefaultPlatform()) {
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i::FLAG_always_opt = false;
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i::FLAG_allow_natives_syntax = true;
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v8::V8::InitializeICUDefaultLocation(exec_path);
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v8::V8::InitializeExternalStartupData(exec_path);
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v8::V8::InitializePlatform(platform_.get());
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v8::V8::Initialize();
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v8::Isolate::CreateParams create_params;
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allocator_.reset(v8::ArrayBuffer::Allocator::NewDefaultAllocator());
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create_params.array_buffer_allocator = allocator_.get();
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isolate_ = v8::Isolate::New(create_params);
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}
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V8InitializationScope::~V8InitializationScope() {
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isolate_->Dispose();
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v8::V8::Dispose();
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v8::V8::ShutdownPlatform();
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}
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std::string ReadRawJSSnippet(std::istream& stream) { // NOLINT
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std::stringstream body_buffer;
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CHECK(body_buffer << stream.rdbuf());
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return body_buffer.str();
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}
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bool ReadNextSnippet(std::istream& stream, std::string* string_out) { // NOLINT
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std::string line;
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bool found_begin_snippet = false;
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string_out->clear();
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while (std::getline(stream, line)) {
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if (line == "snippet: \"") {
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found_begin_snippet = true;
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continue;
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}
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if (!found_begin_snippet) continue;
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if (line == "\"") return true;
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if (line.size() == 0) {
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string_out->append("\n"); // consume empty line
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continue;
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}
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CHECK_GE(line.size(), 2u); // We should have the indent
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string_out->append(line.begin() + 2, line.end());
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*string_out += '\n';
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}
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return false;
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}
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std::string UnescapeString(const std::string& escaped_string) {
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std::string unescaped_string;
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bool previous_was_backslash = false;
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for (char c : escaped_string) {
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if (previous_was_backslash) {
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// If it was not an escape sequence, emit the previous backslash
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if (c != '\\' && c != '"') unescaped_string += '\\';
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unescaped_string += c;
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previous_was_backslash = false;
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} else {
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if (c == '\\') {
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previous_was_backslash = true;
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// Defer emission to the point where we can check if it was an escape.
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} else {
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unescaped_string += c;
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}
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}
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}
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return unescaped_string;
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}
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void ExtractSnippets(std::vector<std::string>* snippet_list,
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std::istream& body_stream, // NOLINT
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bool read_raw_js_snippet) {
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if (read_raw_js_snippet) {
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snippet_list->push_back(ReadRawJSSnippet(body_stream));
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} else {
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std::string snippet;
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while (ReadNextSnippet(body_stream, &snippet)) {
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snippet_list->push_back(UnescapeString(snippet));
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}
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}
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}
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void GenerateExpectationsFile(std::ostream& stream, // NOLINT
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const std::vector<std::string>& snippet_list,
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const V8InitializationScope& platform,
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const ProgramOptions& options) {
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v8::Isolate::Scope isolate_scope(platform.isolate());
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v8::HandleScope handle_scope(platform.isolate());
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v8::Local<v8::Context> context = v8::Context::New(platform.isolate());
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v8::Context::Scope context_scope(context);
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BytecodeExpectationsPrinter printer(platform.isolate());
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printer.set_wrap(options.wrap());
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printer.set_module(options.module());
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printer.set_top_level(options.top_level());
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printer.set_print_callee(options.print_callee());
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printer.set_oneshot_opt(options.oneshot_opt());
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if (!options.test_function_name().empty()) {
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printer.set_test_function_name(options.test_function_name());
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}
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if (options.do_expressions()) i::FLAG_harmony_do_expressions = true;
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if (options.public_fields()) i::FLAG_harmony_public_fields = true;
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if (options.private_fields()) i::FLAG_harmony_private_fields = true;
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if (options.static_fields()) i::FLAG_harmony_static_fields = true;
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stream << "#\n# Autogenerated by generate-bytecode-expectations.\n#\n\n";
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options.PrintHeader(stream);
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for (const std::string& snippet : snippet_list) {
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printer.PrintExpectation(stream, snippet);
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}
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i::FLAG_harmony_do_expressions = false;
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i::FLAG_harmony_public_fields = false;
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i::FLAG_harmony_private_fields = false;
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i::FLAG_harmony_static_fields = false;
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}
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bool WriteExpectationsFile(const std::vector<std::string>& snippet_list,
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const V8InitializationScope& platform,
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const ProgramOptions& options,
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const std::string& output_filename) {
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std::ofstream output_file_handle;
|
|
if (!options.write_to_stdout()) {
|
|
output_file_handle.open(output_filename.c_str());
|
|
if (!output_file_handle.is_open()) {
|
|
REPORT_ERROR("Could not open " << output_filename << " for writing.");
|
|
return false;
|
|
}
|
|
}
|
|
std::ostream& output_stream =
|
|
options.write_to_stdout() ? std::cout : output_file_handle;
|
|
|
|
GenerateExpectationsFile(output_stream, snippet_list, platform, options);
|
|
|
|
return true;
|
|
}
|
|
|
|
void PrintMessage(v8::Local<v8::Message> message, v8::Local<v8::Value>) {
|
|
std::cerr << "INFO: "
|
|
<< *v8::String::Utf8Value(v8::Isolate::GetCurrent(), message->Get())
|
|
<< '\n';
|
|
}
|
|
|
|
void DiscardMessage(v8::Local<v8::Message>, v8::Local<v8::Value>) {}
|
|
|
|
void PrintUsage(const char* exec_path) {
|
|
std::cerr
|
|
<< "\nUsage: " << exec_path
|
|
<< " [OPTIONS]... [INPUT FILES]...\n\n"
|
|
"Options:\n"
|
|
" --help Print this help message.\n"
|
|
" --verbose Emit messages about the progress of the tool.\n"
|
|
" --raw-js Read raw JavaScript, instead of the output format.\n"
|
|
" --stdin Read from standard input instead of file.\n"
|
|
" --rebaseline Rebaseline input snippet file.\n"
|
|
" --no-wrap Do not wrap the snippet in a function.\n"
|
|
" --disable-oneshot-opt Disable Oneshot Optimization.\n"
|
|
" --print-callee Print bytecode of callee, function should "
|
|
"return arguments.callee.\n"
|
|
" --module Compile as JavaScript module.\n"
|
|
" --test-function-name=foo "
|
|
"Specify the name of the test function.\n"
|
|
" --top-level Process top level code, not the top-level function.\n"
|
|
" --do-expressions Enable harmony_do_expressions flag.\n"
|
|
" --public-fields Enable harmony_public_fields flag.\n"
|
|
" --private-fields Enable harmony_private_fields flag.\n"
|
|
" --static-fields Enable harmony_static_fields flag.\n"
|
|
" --output=file.name\n"
|
|
" Specify the output file. If not specified, output goes to "
|
|
"stdout.\n"
|
|
" --pool-type=(number|string|mixed)\n"
|
|
" Specify the type of the entries in the constant pool "
|
|
"(default: mixed).\n"
|
|
"\n"
|
|
"When using --rebaseline, flags --no-wrap, --test-function-name \n"
|
|
"and --pool-type will be overridden by the options specified in \n"
|
|
"the input file header.\n\n"
|
|
"Each raw JavaScript file is interpreted as a single snippet.\n\n"
|
|
"This tool is intended as a help in writing tests.\n"
|
|
"Please, DO NOT blindly copy and paste the output "
|
|
"into the test suite.\n";
|
|
}
|
|
|
|
} // namespace
|
|
|
|
int main(int argc, char** argv) {
|
|
ProgramOptions options = ProgramOptions::FromCommandLine(argc, argv);
|
|
|
|
if (!options.Validate() || options.print_help()) {
|
|
PrintUsage(argv[0]);
|
|
return options.print_help() ? 0 : 1;
|
|
}
|
|
|
|
V8InitializationScope platform(argv[0]);
|
|
platform.isolate()->AddMessageListener(
|
|
options.suppress_runtime_errors() ? DiscardMessage : PrintMessage);
|
|
|
|
std::vector<std::string> snippet_list;
|
|
|
|
if (options.read_from_stdin()) {
|
|
// Rebaseline will never get here, so we will always take the
|
|
// GenerateExpectationsFile at the end of this function.
|
|
DCHECK(!options.rebaseline());
|
|
ExtractSnippets(&snippet_list, std::cin, options.read_raw_js_snippet());
|
|
} else {
|
|
for (const std::string& input_filename : options.input_filenames()) {
|
|
if (options.verbose()) {
|
|
std::cerr << "Processing " << input_filename << '\n';
|
|
}
|
|
|
|
std::ifstream input_stream(input_filename.c_str());
|
|
if (!input_stream.is_open()) {
|
|
REPORT_ERROR("Could not open " << input_filename << " for reading.");
|
|
return 2;
|
|
}
|
|
|
|
ProgramOptions updated_options = options;
|
|
if (options.rebaseline()) {
|
|
updated_options.UpdateFromHeader(input_stream);
|
|
CHECK(updated_options.Validate());
|
|
}
|
|
|
|
ExtractSnippets(&snippet_list, input_stream,
|
|
options.read_raw_js_snippet());
|
|
|
|
if (options.rebaseline()) {
|
|
if (!WriteExpectationsFile(snippet_list, platform, updated_options,
|
|
input_filename)) {
|
|
return 3;
|
|
}
|
|
snippet_list.clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!options.rebaseline()) {
|
|
if (!WriteExpectationsFile(snippet_list, platform, options,
|
|
options.output_filename())) {
|
|
return 3;
|
|
}
|
|
}
|
|
}
|